Crank-pin oiler



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No. 752,047. PATENIBD FEB. 16, 1904. J. H. DBARE.

GRAN-K PIN OILEB..

APPLIUAT'ION FILED JAR?. 1903.

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UNITED STATES Patented February 16, 1904.

PATENT OFFICE.

JOSEPH H. DEARE, OF DETROIT, MICHIGAN, ASSIGNOR TO AMERICAN LUBRICATOR COMPANY, OF DETROIT, MICHIGAN.

CRANK-PIN OILER.

SPECIFICATION forming part of Letters Patent No. 752,047, dated February 16, 1904.

Application tiled January 2, 1903.

To all whom, t may concern:

Be it known that I, JOSEPH H. DEARE, a citizen of the United States of America, residing at Detroit, in the county of Vayne and Stateof Michigan, have invented certain new and useful Improvements in Crank-Pin Oilers, of which the following is a specication, reference being had therein to the accompanying drawings.

This invention relates to improvements in lubricators oi' the class known as crank-pin oilers; and the invention consists in providing the same with means whereby the bearing may be oiled direct and which forms a vent Ior the escape of the vapors from the bearing, and in the novel construction of the heads of the cup and the particular arrangement and combination of parts, all as hereinafter more particularly described, and particularly pointed out in the claims, reference being had to the accompanying drawings, in which- Figure 1 is a central vertical section of a device embodying my invention; Fig. 2, a plan :view of the same with the cap removed, and

Fig. 3 l a central vertical section showing a modified construction.

The cup consists of the lower head A, formed with an upwardly-extending tubular axial portion a, having a reduced and screw-threaded upper end, and an upper head B, formed with .a downwardly-extending tubular axial portion o, provided with an internal screw-thread to engage the screw-thread on the portion c and draw the heads toward each other to clamp the cylindrical glass body C between said heads and unite the 'said tubular portions to form a central feed-tube D. The upper head is formed with an axial dll-opening E, surrounded by an upwardly-extending screw-threaded ange e, which is engaged by the screw-cap F to close the opening, and directly below the Ell-opening the upper end of the feed-tube is cored out to form a chamber Gr,L having lateral openings g, communicating with the interior of the cup, and within the feed-tube below the chamber is a contracted feed-opening H.

Integral with the flange e and extending across the fill-opening is a bridge-bar I, provided with a screw-threaded opening to re- Serial No. 137,428. (No model.)

ceive the regulating-screw J, which extends downward with its conical point projecting into the feed-opening H to form a screw-valve to regulate the iiow of oil through said opening.

A small vent-tube K is secured within the head B, with its upper end adjacent to the top of the cap F and extending downward through the bridge-bar I, and chamber Gropens into the bore of the feed-tube D below the feedopening H, so that any vapors rising in the feed-tube may pass into the upper part or' the cup and not interfere with the iiow of the oil. It also provides for the direct oiling of the bearing when the cap F is removed.

The diameter of the bore of the lower portion c of the feed-tube D is less than the diameter of the bore of the portion o, and thus a shoulder d is formed within said tube at a short distance below its feed-opening H, and a loose rod L extends downward within `the feed-tube and is provided with a head Z, consisting of an open ring m, secured by arms 'n to the end of the rod and engaging the shoulder d, or said head may be formed, as shown in Fig. 3, by bending said rod laterally to `form a hook to engage the shoulder and limit the movement of the rod, which is free to play upvand down in the feed-tube for the purpose of keeping the passage from becoming clogged and also to. accelerate the feed.

As in other devices of this class this cup is inoperative when the crank to which it is attached is at rest, the oil being thrown into the chamber G through the openings g by the motion of the crank and feeding slowly through the feed opening therefrom, the amount of oil fed being determined by removing the screw-cap and adjusting the screwvalve.

By casting the feed-tube D integral with the heads the cup is formed of kbut the two castings, and therefore less labor and machinery is required in its manufacture and a very neat, compact, and cheap device secured.

Having thus fully described my invention, what I claim isl. In a lubricator, the combination with the cylindrical glass body and an upper and a lower head; of a tubular axial portion integral with the lower head and provided with an upper reduced and threaded end, a tubular axial portion integral with the upper head and cored out to form a chamber having lateral openings and a feed-opening, saidtubular portion being internally screw-'threaded at its lower end to receive the screw-threaded end of the other portion, a screw-valve within said chamber, a shoulder Within the feed tube formed by the uniting of said tubular portions, and a rod free to Inovewithin said tube and having a head to engage said shoulder.

2. In a lubricator, the combination with the cylindrical glass body; of an upper head having a fill-opening, a lower head, a central feedtube Jformed of a tubular portion integral with the upper head and a tubular portion integral with the lower head, said portions beingformed with an external and an internal screwthread for uniting the saine, a Chamber formed in the upper end of said feed-tube and having lateral openings and a contracted feed-opening, a iic nge extending upward `around the fill-opening, a screw cap on said ange, a bridge-bar extending across said E111-opening, a screw valve extending through said bar with its lower end projecting into the .feedopening, a vent-tube extending with its upper end adjacent to said cap, downward through the chamber and opening at its lower end into the bore of the feed-tube below the feedopening, a shoulder formed in the interior of the feed-tube, a rod within said feed-tube and a head on said rod to engage the said shoulder.

In testimony whereof I alix rny signature in presence oi' two witnesses.

JOSEPH H. DEARE. Witnesses:

E. H. CAMPBELL, OTTO F. BARTHEL. 

